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Here is a new version of the patch. Apart from specifying data representation via environment variables, this version also supports a compile-time flag. Regression-tested on i686-pc-linux-gnu. Documentation checked with "make dvi". OK? 2005-01-22 Thomas Koenig <Thomas.Koenig@online.de> PR libfortran/23815 gfortran.texi: Document the GFORTRAN_CONVERT_UNIT environment variable. invoke.texi: Mention the "Runtime" chapter. Document the -fconvert= option. gfortran.h: Add options_convert. lang.opt: Add fconvert=little-endian, fconvert=big-endian, fconvert=native and fconvert=swap. trans-decl.c (top level): Add gfor_fndecl_set_convert. gfc_build_builtin_function_decls: Set gfor_fndecl_set_convert. gfc_generate_function_code: If -fconvert was specified, and this is the main program, add a call to set_convert(). options.c: Handle the -fconvert options. 2005-01-22 Thomas Koenig <Thomas.Koenig@online.de> PR libfortran/23815 runtime/environ.c (init_unformatted): Add GFORTRAN_CONVERT_UNIT environment variable. (top level): Add defines, type and static variables for GFORTRAN_CONVERT_UNIT handling. (search_unit): New function. (match_word): New function. (match_integer): New function. (next_token): New function. (push_token): New function. (mark_single): New function. (mark_range): New funciton. (do_parse): New function. (init_unformatted): New function. (get_unformatted_convert): New function. runtime/compile_options.c: Add set_convert(). libgfortran.h: Add convert to compile_options_t. io/open.c (st_open): Call get_unformatted_convert to get unit default; if CONVERT_NONE is returned, check for the presence of a CONVERT specifier and use it. As default, use compile_options.convert. io/io.h (top level): Add CONVERT_NONE to unit_convert, to signal "nothing has been set". (top level): Add prototype for get_unformatted_convert. 2005-01-22 Thomas Koenig <Thomas.Koenig@online.de> PR libfortran/23815 unf_io_convert_4.f90: New test.
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